Best to start fresh with RPMO

New technology using Hy-Est Syn oil

Specifically designed for rotary engines

Our products are made in Australia from the best quality base materials

Shop now

Perfect for all Rotary Engines

Exceptional for RX8!

Prevents carbon build-up

The superior oxidation stability effectively

Decreases oil acidity
Significantly reduces varnish deposits on ‘hot’ metal surfaces and turbochargers
Eliminates sludge deposits formed by oil-insoluble polymers when mixed with unburned fuel, water and reactive metals
Prevents rapid additive depletion
Maintains viscosity over longer service intervals
Reduces operating temperatures
Withstands the higher temperatures generated by the Rotary and Renesis engine designs

RPMO Caster Premix for Engines running Ethanol Based Fuels

Shop now

High-Temperature Performance: RPMO castor oil is formulated to withstand extreme temperatures encountered in racing conditions. It maintains viscosity and lubricity under high RPMs and intense heat, crucial for protecting engine components and ensuring consistent performance throughout races.
Enhanced Lubrication: The unique formulation of RPMO castor oil offers enhanced lubrication properties, optimizing engine efficiency and power output. This translates into improved, cleaner, combustion improving throttle response and smoother engine operation maximizing consistent power which is essential for competitive racing environments.
Different from the rest: RPMO Racing Engine Castor Oil sets itself apart with its unrivaled performance under extreme conditions. Crafted for peak racing engines, it boasts a unique 100% dilution capability, ensuring optimal lubrication and cooling without compromise. Its resistance to gumming over extended periods surpasses competitors, providing sustained reliability and power. Trusted by top-tier racers and engine builders, RPMO Castor Oil delivers unmatched endurance and efficiency, making it the ultimate choice for competitive motorsports.

Clean-Burning: RPMO castor oil is known for its clean-burning characteristics, minimizing carbon deposits and keeping engine internals cleaner. This helps maintain peak engine performance over extended periods.
Historical Legacy: RPMO embraces the heritage of castor oil in racing, drawing on its historical significance while leveraging modern advancements in oil technology. This blend of tradition and innovation appeals to racing teams and enthusiasts who value engine performance.
Customer Satisfaction: Feedback from racing teams and drivers using RPMO castor oil often highlights its reliability and consistent performance under demanding race conditions. This positive reputation underscores its effectiveness in competitive motorsport.

RPMO Rotary Engine Oil

Our engine oil delivers exceptional wear protection between the rotating assembly and the associated bearings in Mazda rotary engines. Suitable for use in street, circuit, performance and drag rotary engines.

Compatible with the standard Oil Metering Pump systems for 10A, 12A, 13B, REW, Renesis, 20B.

Shop now

10A, 12A, 13B, 20B, 26B

Renesis, Turbo engines

RPMO Rotary Engine Pre-mix Fuel Additive

Are you pre-mixing or OMP delete?

The unique dispersant profile of our Premix meets those challenging aspects of rotary engines.

Using RPMO fuel pre-mix additive will prevent carbonised soot and harmful abrasive contaminant particles from fouling spark plugs, apex, side and corner seal clearances and turbo exhaust fan soot build-up.

Our pre-mix Eliminates carbon deposits from ignition, including carbon locking of rotors and sticking apex seals always leaving an oil film after combustion on the critical rotating assembly.

Shop now